Just had that same experience yesterday: sold a book that I'd had listed
for a long time. My terms were Media Mail, as the buyer selected. After
I weighed and measured the package I noticed the "Media Mail" shipping
options had been greyed out. Huh? ...
I'm having the same problem (two dashes instead of view number). I
refresh the page and sometimes the actual number comes back....and
sometimes it doesn't. Very frustrating.